4-Amino-2-hydroxy-3,5-diiodobenzoic acid CAS 74764-64-0
| CAS No. | 74764-64-0 |
| Molecular Formula | C7H5I2NO3 |
| Molecular Weight | 404.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Amino-2-hydroxy-3,5-diiodobenzoic acid (CAS 74764-64-0), molecular formula C7H5I2NO3 and molecular weight 404.93 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H5I2NO3, 4-Amino-2-hydroxy-3,5-diiodobenzoic acid contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 404.93 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Amino-2-hydroxy-3,5-diiodobenzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H5I2NO3 |
| Molecular Weight | 404.93 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
Related Amino Standards
- (2E)-3-Amino-3-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}-2-cyano-N-methylprop-2-enethioamide (CAS 338422-38-1)
- 3-(Boc-amino)-4-(4-iodophenyl)butyric Acid (CAS 1824505-64-7)
- 6-Amino-4-(3-bromo-4-hydroxy-5-methoxyphenyl)-3-propyl-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile (CAS 667404-58-2)
- N-[2-Amino-6-(3,5-dichlorophenyl)pyrido[2,3-d]pyrimidin-7-yl]-N’-(1,1-dimethylethyl)urea (CAS 1135256-66-4)
- 3-Amino-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)but-2-en-1-one (CAS 847445-81-2)
- 2-Amino-6-{4-[3-(trifluoromethyl)phenoxy]phenyl}pyridine-3,4,5-tricarbonitrile (CAS 478248-02-1)
- ((((((2S)-1-(6-Amino-4H-purin-9(8H)-yl)propan-2-yl)oxy)methyl)(hydroxy)phosphoryl)oxy)methyl isopropyl carbonate (CAS 1841115-98-7)
- 1-Amino-5-hydroxy-4-((2-methoxyphenyl)amino)-8-nitroanthracene-9,10-dione (CAS 71412-38-9)
Recommended Standards
- 2-{[(4-chlorophenyl)methyl]sulfanyl}-5-methoxy-4-[(4-methoxyphenyl)sulfanyl]pyrimidine (CAS 338423-12-4)
- 5-Chloro-N,N-bis(2-methoxyethyl)-4-tosylthiazol-2-amine (CAS 519150-41-5)
- 2-((2-(4-Chlorophenyl)-2-oxoethyl)thio)-3-ethyl-3,5,6,7-tetrahydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one (CAS 314041-83-3)
- 5-Chloro-N-[2-(1H-indol-3-yl)ethyl]-3-methyl-1-benzothiophene-2-sulfonamide (CAS 900019-90-1)
- n-(1-Cyclopropylethyl)-2,4-dimethylaniline (CAS 1019617-85-6)
- cis-tert-Butyl-3,3a,4,5-tetrahydro-1H-pyrrolo-[3,4-c]isoquinoline-2(9bH)-carboxylate (CAS 1251003-76-5)
- 4,4'-(6-(4-Methoxyphenyl)-1,3,5-triazine-2,4-diyl)bis(benzene-1,3-diol) (CAS 1440-00-2)
- Ketoconazole Impurity 15 (CAS 581806-59-9)
- [(2,2-difluoro-2H-1,3-benzodioxol-5-yl)methyl](methyl)amine hydrochloride (CAS 1909316-10-4)
- Vonoprazan Impurity 281 (CAS 3058423-29-0)
- (2-(Methylsulfonyl)pyrimidin-4-yl)methanamine (CAS 1545620-45-8)
- 3-Cyclopropoxy-4-fluoropicolinonitrile (CAS 1243451-96-8)
- Cefdinir CP Impurity S (CAS 127770-93-8)
- [Glu]17-Semaglutide (CAS CATO-CPTD788604)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com